Relating to nails

ABSTRACT

A nail of &#39;&#39;&#39;&#39;I&#39;&#39;&#39;&#39; section having a flat web the flanges along the opposite sides of the web of the section extending in the lengthwise direction of the nail, the web having a gap of V form extending inwardly of the web from the leading end of the nail the edges of the gap diverging from the inner end thereof so as to provide a pointed end at each side of the web at said leading end of the nail. The edges of the gap can each be formed as a knife edge to facilitate penetration of the nail.

United States Patent [191 Rosen RELATING TO NAILS [76] Inventor: SidneyRosen, 11 Park Lodge,

Friern Park, London, England [22] Filed: Sept. 8, 1971 [21] Appl. No.:178,552

[52] US. Cl ..85/l1 [51] Int. C1, ..Fl 6b 1 5/00 [58] FieldofSearch..85/11,13;287/20.92 D,

[56] References Cited UNITED STATES PATENTS 1,793,185 2/1931 McChesney..85/l1 1,368,460 2/1921 Siegler 3,266,361 8/1966 Gravenhorst. 2,134,76511/1938 Putnam ..85/11 l 5lMarch 20, 1973 FOREIGN PATENTS ORAPPLICATIONS 479 5/1906 Great Britain ..85/1 1 Primary Examiner-EdwardC. Allen Attorney-E. E. Greigg ABSTRACT A nail of 1 section having aflat web the flanges along the opposite sides of the web of the sectionextending in the lengthwise direction of the nail, the web having a gapof V form extending inwardly of the web from the leading endof the nailthe edges of the gap diverging from the inner end thereof so as toprovide a pointed end at each side of the web at said leading end of thenail. The edges of the gap can each be formed as a knife edge tofacilitate penetration of the nail.

1 Claim, 4 Drawing Figures RELATING TO NAILS This invention relates tonails of I section the flanges along the opposite sides of the web ofthe section extending in the lengthwise direction of the nail.

' A nail according to the invention is of I" section having a flat webthe flanges along the opposite sides of the web of the section extendingin the lengthwise direction of the nail, the web having a gap of V formextending inwardly of the web from the leading end of the nail the edgesof the gap diverging from the inner end thereof so as to provide apointed end at each side of the web at said leading end of the nail. Theedges of the gap can each be formed as a knife edge to facilitatepenetration of the nail.

A nail according to the invention will now be described by way ofexample with reference to the accompanying drawings in which:

FIG. 1 is a perspective view of the nail,

FIG. 2 is a plan view of the nail of FIG. 1,

FIG. 3 is a view as seen from the opposite side of FIG. 1, and

FIG. 4 is a view as seen from the left of FIG. 3.

Referring to the drawings, the nail is of I section having a flat web 1and a flange 2 extending along opposite sides of the web in thelengthwise direction of the nail the outer surface 3 of each flangebeing curved in section. The web 1 has a gap 4 extending inwardly fromthe leading end of the nail. The gap is of V form, the edges 5 of thegap diverging from the inner end of the gap so as to provide a pointedend 6 at each side of the web and at the leading end of the nail theflanges 2 also being formed to merge into the pointed ends as shown inthe drawings. The edges 5 of the gap 4 are each formed to provide aknife edge as shown at 7 in FIG. 1. The nail can be made from extrudedsteel strip, pieces of appropriate length being cut-off from the strip,the gap 4 being for example formed in the cut-off length, the gap edgesbeing formed to provide the knife-edges and the flanges formed toproduce the required pointed ends thereof.

In use the nail is driven into material pointed end first and isparticularly suitable for securing timber sections together at cornerjunctions and where for example tenon or dovetail joints would normallybe used.

I Claim 1. A nail of I section having a flat web and flanges along theopposite sides of the web, the flanges extending parallel to each otherfor a major portion of their length, each flange being continuous fromone end of the nail to the other and each flangehaving a curved convexouter surface and flat inner surfaces perpendicular to the web, the sideedges and the outer surface of each flange tapering for a short distancenear the leading end to a sharp point at the leading end of the nail,the web having a gap of V form at the leading end of the nail, the edgesof the gap diverging from the inner end of the gap towards the leadingend of the nail and merging with the points formed by the flanges, andthe edges of the gap being formed as tapered knife edges.

1. A nail of ''''I'''' section having a flat web and flanges along theopposite sides of the web, the flanges extending parallel to each otherfor a major portion of their length, each flange being continuous fromone end of the nail to the other and each flange having a curved convexouter surface and flat inner surfaces perpendicular to the web, the sideedges and the outer surface of each flange tapering for a short distancenear the leading end to a sharp point at the leading end of the nail,the web having a gap of V form at the leading end of the nail, the edgesof the gap diverging from the inner end of the gap towards the leadingend of the nail and merging with the points formed by the flanges, andthe edges of the gap being formed as tapered knife eDges.